This is quite interesting because researchers have a working cipher machine that provides an unbreakable one time code.]]>6Italian Spy satellitesSat, 08 Sep 2018 10:58:25 +0000https://www.defencetalk.com/military/forums/t/italian-spy-satellites.14633/
https://www.defencetalk.com/military/forums/t/italian-spy-satellites.14633/invalid@example.com (JFoulke)JFoulke
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The OPTSAT 3000 is an Optical reconnaissance Satellite launched in 2017 and has an expected lifetime of 7 years and was built by Telespazio, a joint venture between Leonardo (67%) and Thales (33%).
The COSMO-SkyMed (Constellation of Small Satellites for Mediterranean basin observation) it's composed COSMO 1 and 2 launched in 2007, COSMO 3 launched...

With a newly assertive Russia,rising China and the US all developing space technologies with military applications. Is a new arms race looming?

While several treaties exist regarding space based activities - military or other; are they enough to prevent hostile events or actions by the aforementioned...

Arms Race in Space]]>8aviation developmentsThu, 12 Apr 2018 13:51:32 +0000https://www.defencetalk.com/military/forums/t/aviation-developments.13964/
https://www.defencetalk.com/military/forums/t/aviation-developments.13964/invalid@example.com (gf0012-aust)gf0012-austJet fuel-powered UAV completes record 56-hour flight, with plenty left in the tank]]>37Airborne systems for the protection of aircrafts from guided missilesFri, 06 Apr 2018 10:04:44 +0000https://www.defencetalk.com/military/forums/t/airborne-systems-for-the-protection-of-aircrafts-from-guided-missiles.14293/
https://www.defencetalk.com/military/forums/t/airborne-systems-for-the-protection-of-aircrafts-from-guided-missiles.14293/invalid@example.com (Alexandr_1986)Alexandr_1986
Lots of discussions have been held regarding the characteristics of different combat aircrafts equiped with the state-of-art avionics, with the possibility to carry the variety of missiles and etc. Of course their prices have been also discussed.
But defense also keeps the relevans. Otherwise, any aircraft with the best combat characteristics will be shoot down with AAM or SAM.
Besides, it is rather pity to see when the best combat aircrafts were hitted by cheap RPG...

Airborne systems for the protection of aircrafts from guided missiles]]>Compact Fusion ReactorWed, 28 Mar 2018 14:22:58 +0000https://www.defencetalk.com/military/forums/t/compact-fusion-reactor.13327/
https://www.defencetalk.com/military/forums/t/compact-fusion-reactor.13327/invalid@example.com (John Fedup)John Fedup50Nanotechnology in Warfare: Serious ImplicationsThu, 01 Mar 2018 11:48:07 +0000https://www.defencetalk.com/military/forums/t/nanotechnology-in-warfare-serious-implications.11330/
https://www.defencetalk.com/military/forums/t/nanotechnology-in-warfare-serious-implications.11330/invalid@example.com (HybridCyph3r_F1)HybridCyph3r_F1
"Not only does nanotechnology continue to attract considerable public interest and growing business investments, but more than 30 countries worldwide have launched public R&D programmes in the field. Such initiatives go a long way towards increasing the resources available to research, but do they go far enough to ensure that the full...

NZ Space Launch Capability]]>23SDI: Would it have been a great defense?Sat, 09 Dec 2017 15:37:18 +0000https://www.defencetalk.com/military/forums/t/sdi-would-it-have-been-a-great-defense.14055/
https://www.defencetalk.com/military/forums/t/sdi-would-it-have-been-a-great-defense.14055/invalid@example.com (Skyhi2k2)Skyhi2k23Medical advances on the battlefieldThu, 16 Nov 2017 10:03:35 +0000https://www.defencetalk.com/military/forums/t/medical-advances-on-the-battlefield.13787/
https://www.defencetalk.com/military/forums/t/medical-advances-on-the-battlefield.13787/invalid@example.com (gf0012-aust)gf0012-aust7X-37 - The first military space plane?Fri, 08 Sep 2017 11:22:11 +0000https://www.defencetalk.com/military/forums/t/x-37-the-first-military-space-plane.10184/
https://www.defencetalk.com/military/forums/t/x-37-the-first-military-space-plane.10184/invalid@example.com (furymonkey)furymonkey
What do guys think this plane will have? Will they eventually equip...

X-37 - The first military space plane?]]>24sabot techSat, 25 Feb 2017 06:05:52 +0000https://www.defencetalk.com/military/forums/t/sabot-tech.14016/
https://www.defencetalk.com/military/forums/t/sabot-tech.14016/invalid@example.com (chimera)chimera
I'm trying to get my head around maths.

Sabot .. "This, in combination with the sub-projectiles’ higher sectional density, gives the resulting sub-projectile vastly reduced aerodynamic drag in comparison to the APCR. Both the higher initial velocity and the reduced drag result in high velocity at impact."

For concrete "The penetration depth increases almost linearly with impact velocity in that range . "